2003 AccurateUnlexicalizedParsing
- (Klein & Manning, 2003) ⇒ Dan Klein, and Christopher D. Manning. (2003). “Accurate Unlexicalized Parsing.” In: Proceedings of ACL 2003.
Subject Headings: Stanford Parser, Natural Language Parser, Unlexicalized PCFG.
Notes
Cited By
~714 http://scholar.google.com/scholar?cites=9225993212759532262
Quotes
Abstract
We demonstrate that an unlexicalized PCFG can parse much more accurately than previously shown, by making use of simple, linguistically motivated state splits, which break down false independence assumptions latent in a vanilla treebank grammar. Indeed, its performance of 86.36% (LP/LR F1) is better than that of early lexicalized PCFG models, and surprisingly close to the current state-of-the-art. This result has potential uses beyond establishing a strong lower bound on the maximum possible accuracy of unlexicalized models: an unlexicalized PCFG is much more compact, easier to replicate, and easier to interpret than more complex lexical models, and the parsing algorithms are simpler, more widely understood, of lower asymptotic complexity, and easier to optimize.
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BibTeX
@inproceedings{DBLP:conf/acl/KleinM03,
author = {Dan Klein and
Christopher D. Manning},
title = {Accurate Unlexicalized Parsing.},
booktitle = {ACL},
year = {2003},
pages = {423-430},
ee = {http://acl.ldc.upenn.edu/acl2003/main/pdfs/Klein.pdf},
bibsource = {DBLP, http://dblp.uni-trier.de}
}
,